A03604: CELL_SPT_CECS_MS_NUM
This measurement provides the number of calls originated or terminated by MSs that process services in this cell and support Early Classmark Sending.
Integer number or integer.
When the "ES IND" field in classmark 2 is set to "1", this measurement is triggered if any of the following situations occurs: the MS sends the classmark change message; the MSC sends the classmark update message; the incoming BSC handover is complete.
This is an original counter without involving any formula.